I have a "Sunny's Love" double magenta azalea, blooms faithfully and early, which I got a couple of decades ago from Roslyn Nursery. I haven't seen it for sale at online azalea nurseries, but it should be! Actually it might be classed as a lepidote rhododendron.
Some azalea nurseries should get copies from me. I have no idea how to take cuttings. Someone might want to tell me how.
Actually i have 2 bushes, quite similar, but one blooms a little stronger color and slightly later than the other, and i don't know which one is Sunny's Love.
Sunny's Love double magenta lepidote rhododendron